Erin Strengthens to a Hurricane; Heavy Rainfall Possible in Puerto Rico and the Virgin Islands, the Upper Midwest, South Texas

Hurricane Erin may bring isolated flash and urban flooding, landslides or mudslides, and possible tropical storm conditions to Puerto Rico and the U.S. Virgin Islands this weekend. Scattered thunderstorms and heavy rainfall may bring areas of flooding this weekend over the Upper Midwest. A tropical disturbance will bring locally heavy rain and mainly urban flash flooding to far southern Texas. Read More >

Current conditions at

Huron, Huron Regional Airport (KHON)

Lat: 44.39°NLon: 98.23°WElev: 1286ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

13 Miles NNE Gann Valley SD

Severe T-storm Watch until August 17, 07:00am
Click here for hazard details and duration
Severe T-storm Watch
  •  
    Severe T-storm Watch until August 17, 07:00am

    NOW until 7:00am Sun

    Severe T-storm Watch

  • Overnight

    Low: 76 °F

    Severe
    Thunderstorms

  • Sunday

    Sunday: A slight chance of showers and thunderstorms before 4pm. Some of the storms could be severe.  Mostly cloudy, then gradually becoming sunny, with a high near 89. Southeast wind 8 to 13 mph.  Chance of precipitation is 20%.

    High: 89 °F

    Severe
    Thunderstorms

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms before midnight.  Mostly cloudy, with a low around 66. North northwest wind 7 to 10 mph.  Chance of precipitation is 20%.

    Low: 66 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 85. North wind around 9 mph.

    High: 85 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms before 1am.  Partly cloudy, with a low around 63. East northeast wind 6 to 9 mph.  Chance of precipitation is 20%.

    Low: 63 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: Sunny, with a high near 84. East wind 6 to 9 mph.

    High: 84 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 63. East wind 7 to 9 mph.

    Low: 63 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 86. South southeast wind 7 to 13 mph.

    High: 86 °F

    Sunny

Detailed Forecast

Overnight
A slight chance of showers and thunderstorms. Some of the storms could be severe. Mostly cloudy, with a steady temperature around 76. East southeast wind around 9 mph. Chance of precipitation is 20%.
Sunday
A slight chance of showers and thunderstorms before 4pm. Some of the storms could be severe. Mostly cloudy, then gradually becoming sunny, with a high near 89. Southeast wind 8 to 13 mph. Chance of precipitation is 20%.
Sunday Night
A slight chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 66. North northwest wind 7 to 10 mph. Chance of precipitation is 20%.
Monday
Mostly sunny, with a high near 85. North wind around 9 mph.
Monday Night
A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 63. East northeast wind 6 to 9 mph. Chance of precipitation is 20%.
Tuesday
Sunny, with a high near 84. East wind 6 to 9 mph.
Tuesday Night
Mostly clear, with a low around 63. East wind 7 to 9 mph.
Wednesday
Sunny, with a high near 86. South southeast wind 7 to 13 mph.
Wednesday Night
Mostly clear, with a low around 64. Southeast wind around 14 mph.
Thursday
Sunny, with a high near 89.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 63. Chance of precipitation is 30%.
Friday
A slight chance of showers. Mostly sunny, with a high near 80. Chance of precipitation is 20%.
Friday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 56. Chance of precipitation is 20%.
Saturday
Sunny, with a high near 76.
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ABOUT THIS FORECAST

 
Point Forecast:
13 Miles NNE Gann Valley SD
 44.21°N 98.9°W (Elev. 1952 ft)
4:46 am CDT Aug 17, 2025
5am CDT Aug 17, 2025-6pm CDT Aug 23, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database